exhaust CHEVROLET CAMARO 1982 Repair Guide

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 394
39. Tighten the runner to plenum bolts to
25 ft lbs. (34 Nm). Start in the
center and work outwards.
40. Install the distributor.
41. Connect the fuel lines.
42. Install the EGR valve solenoid.
43. Connect the control cables to the throttle body.
44. Connect all remaining hose and wiring connections.
45. Fill the cooling system.
46. Connect the negative battery cable.
EXHAUST MANIFOLD
REMOVAL & INSTALLATION
EXCEPT 2.5L ENGINES

Fig. 1: Exhaust manifold bolts for most V6 engines up to 1992

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 395

Fig. 2: Exhaust manifold bolts for most V8 engines up to 1992

Fig. 3: On some engines, the bolts are held by lock tabs

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 397

Fig. 6: Removing the exhaust manifold
1. Disconnect the negative battery cable.
2. Remove the air cleaner on carbureted engines.
3. If applicable, remove the ai r cleaner pre-heater shroud.
4. Disconnect the air injecti on reaction pipes, if equipped.
5. Unplug the oxygen sensor connector.
6. Label and unplug the spark plug wires.
7. Remove the spark plug wire heat shields, if equipped.
8. Remove any components which may interfere with removal.
9. Disconnect the exhaust pipe from the manifold and hang it from the
frame out of the way.
10. On some engines, it will be necessary to bend the locktabs from the bolt.
Remove the end bolts, then the center bolts. Remove the manifold.
A thin wall 6-point socket, sharpened at the leading edge and tapped onto the
head of the bolt, simplifies bending the locktabs.
To install:
11. Make sure the mating surfaces are clean.
12. Install a new gasket, if applicable.
13. Position the exhaust manifold onto the engine. Torque the attaching bolts
to:
• 1982-1992 V6 engines: 25 ft lbs. (34 Nm)
• 1982-1992 V8 engines: 26 ft lbs. (35 Nm)
14. Bend the locktabs over the bolts.
15. Connect the exhaust pipe to the manifold.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 398
16. Install all components removed.
17. Connect the oxygen sensor.
18. Install the spark plug wire heat shields.
19. Connect the spark plug wires.
20. If equipped, install the air
cleaner pre-heater shroud.
21. If equipped, connect the air injection reaction pipes.
22. Connect the battery.
2.5L ENGINE

Fig. 7: Exhaust manifold bol t torque sequence for 2.5L engine
1. Disconnect the negative batte ry cable at the battery.
2. Remove the air cleaner assembly , be sure to mark any disconnected
hoses for proper reinstallation.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 399
3. Unplug the oxygen sensor and disconnect the exhaust pipe from the
exhaust manifold.
4. Remove the engine oil level dipstick and tube.
5. Remove the exhaust manifold atta ching bolts and remove the manifold.
To install: 6. Position the exhaust manifold onto the engine with a new gasket. Torque
the bolts, following the correct sequenc e, to 44 ft lbs. (60 Nm).
7. Install the engine oil level dipstick tube and dipstick.
8. Connect the exhaust pipe to the exhaust manifold.
9. Engage the oxygen sensor connector.
10. Install the air cleaner assembly and connecting hoses.
11. Connect the negative battery cable at the battery.
RADIATOR
REMOVAL & INSTALLATION

Fig. 1: Removing radiator upper shield bolts

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 409
When servicing the engine, be absolutely sure to mark vacuum hoses and
wiring so that these items
may be properly reconnected during installation. Also,
when disconnecting fittings of metal lines (fuel, power brake vacuum), always
use two flare nut (or line) wrenches. Ho ld the wrench on the large fitting with
pressure on the wrench as if you were tightening the fitting (clockwise), THEN
loosen and disconnect the smaller fitting fr om the larger fitting. If this is not
done, damage to the line will result.
CAUTION - When draining the coolant, keep in mind that cats and dogs are
attracted by the ethylene gl ycol antifreeze, and are quite likely to drink any that
is left in an uncovered container or in puddles on the ground. This will prove
fatal in sufficient quantity. Always drai n the coolant into a sealable container.
Coolant should be reused unless it is contaminated or several years old.
2.5L ENGINE

Fig. 1: Cylinder head bolt torque sequence for 2.5L engine
1. Disconnect the negative battery cable.
2. Drain the engine block and radiator of coolant.
3. Raise and safely support the vehi cle. Remove the exhaust pipe and
lower the vehicle.
4. Remove the oil level indicator tube.
5. Remove the air cleaner.
6. Unplug the electrical and vac uum connections and disconnect the
linkage from the TBI unit.
7. Disconnect the fuel lines.
8. Remove the EGR valve.
9. Disconnect the heater hoses from the intake manifold.
10. Remove the ignition coil.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 410
11. Disconnect all electrical connecti
ons from the intake manifold and
cylinder head.
12. If the vehicle has air conditioning, remove the compressor and position it
out of the way. Do not disc onnect the refrigerant lines.
13. Remove the alternator and lay the unit aside. If necessary, remove the
alternator brackets.
14. Remove any other brackets or components mounted on the cylinder
head.
15. Remove the upper radiator hose.
16. Remove the rocker arm cover and back off the rocker arm nuts/bolts and
pivot the rocker arms out of the way so that the pushrods can be
removed. Identify the pushrods so that they can be reinstalled in their
original locations.
17. Remove the cylinder head bolts and cylinder head. Remove the intake
and exhaust manifolds, as required.
To install: 18. Thoroughly clean all mating surfaces of oil, grease and old gasket material. Clean the head bo lts and cylinder block threads, otherwise an
accurate torque specificat ion will not be attained.
19. Install a new gasket on the block mating surface. Position the cylinder
head on the block.
Clean the bolt threads, apply sealing comp ound and install the bolts finger-tight.
20. Tighten the head bolts a little at a time using the correct sequence and
torque to 92 ft lbs. (125 Nm).
21. Install the pushrods and rocker arms . Refer to the procedures described
earlier in this section.
22. Refill the cooling system and check for leaks. The remaining installation
is the reverse of the removal procedure.
2.8L AND 3.1L ENGINES

Fig. 2: Cylinder head bolt torque sequence for all V6 engines

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 411
1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure
and drain the engine coolant from the
radiator into a suitable container.
3. Remove the intake manifold and the spark plugs.
4. Remove the dipstick tube and bra cket. Raise and support the vehicle
safely. Drain the oil and remove the oil filter. Lower the vehicle.
5. Remove the exhaust manifolds.
6. Remove the drive belt(s).
7. Remove the air conditioning compresso r and bracket, reposition it aside.
Do not disconnect the lines.
8. Remove the power steering pump and bracket, reposition it aside.
9. Remove the alternator and br acket, reposition it aside.
10. Remove the ground cable from the rear of the cylinder head and remove
the engine lift bracket.
11. Remove the rocker arm covers.
12. Loosen the rocker arms until the pushrods can be removed.
13. Remove the cylinder head bolts and remove the cylinder heads.
To install: 14. Clean the gasket mating surfaces of all components. Be careful not to
nick or scratch any surfaces as this will allow leak paths. Clean the bolt
threads in the cylinder bl ock and on the head bolts. Dirt will affect bolt
torque.
15. Place the head gaskets in pos ition over the dowel pins.
16. Install the cylinder heads.
17. Coat the cylinder head bolts th reads with GM sealer 1052080 or
equivalent, and install the bolts. Tight en the bolts in the proper sequence
to:
• 1982-1987 engines: 70 ft lbs. (90 Nm)
• 1988-1992 engines: 1st step: 40 ft lbs. (55 Nm); 2nd step: tighten
an additional 1/4 (90 degree) turn
18. Install the pushrods a nd loosely retain them wit h the rocker arms. Make
sure the lower ends of the pushrods ar e in the lifter seats. Refer to the
rocker arm procedures outlined ea rlier in this section.
19. Install the power steering pump br acket and pump. Do the same for the
air conditioning compressor bracket and compressor.
20. Install the ground cable to t he rear of the cylinder head.
21. Install the exhaust manifolds.
22. Install the dipstick tube and bracket.
23. Install the intake manifold.
24. Install the alternator bracket and alternator.
25. Install the drive belt(s).
26. Install the spark plugs.
27. Fill the cooling system with the proper type and quantity of coolant. Install
a new oil filter and fill the crankca se with the proper type and quantity of
oil.
28. Connect the negative battery cable, star t the vehicle and check for leaks.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 416

Fig. 11: Cylinder head bolt torque sequence - V8 engines
1. Disconnect the negative battery c able. Drain the cooling system and
relieve the fuel system pressure.
2. Raise and support the vehicle safe ly. Drain the engine oil and remove
the oil filter. Lower the vehicle.
3. Remove the drive belt(s) and remove the intake manifold.
4. Remove the power steering pump, alternator bracket or the air
conditioning compressor mounting br acket and position aside. Do not
disconnect the lines from the air conditioning compressor.
5. Remove the exhaust manifolds and the valve covers.
6. Remove the rocker arms and pushrods.
7. Remove the cylinder head bolts and the cylinder head.
To install: 8. Clean the gasket mating surfaces of all components. Be careful not to
nick or scratch any surfaces as this will allow leak paths. Clean the bolt
threads in the cylinder bl ock and on the head bolts. Dirt will affect bolt
torque.
When using a steel gasket, coat both sides of the new gasket with a thin even
coat of sealer. If using a compos ition gasket, do not use any sealer.
9. Position the head gasket over the dow el pins with the bead up. Install the
cylinder head over the dowel pins and gasket.
10. Coat the threads of the head bo lts with GM 1052080 thread sealer or
equivalent. Install the head bolts and tighten in sequence, in three
passes, to 65 ft lbs. (92 Nm).
11. Install the exhaust manifolds.
12. Install the pushrods and rocker arms, refer to the procedures outlined earlier in this section. Install the valve covers.
13. Install the power steering pump and al ternator bracket or air conditioning
compressor mounting bra cket, as necessary.
14. Install the intake manifold.
15. Install the accessory drive belt(s).

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 422
4. Drain the engine oil.
CAUTION
- Be sure that the catalytic c onverter is cool before proceeding.
5. Remove the air injection pipe at t he catalytic converter, if applicable.
6. Remove the catalytic converte r hanger bolts. Disconnect the exhaust
pipe at the manifold.
7. Remove the starter bolts, loosen t he starter brace, then lay the starter
aside.
8. Remove the front engine mount through-bolts.
9. Raise the engine enough to provide sufficient clearance for oil pan
removal.
10. Remove the oil pan bolts.
If the front crankshaft throw prohibits remo val of the pan, turn the crankshaft to
position the throw horizontally.
11. Remove the oil pan from the vehicle.
12. Remove the old RTV sealant or gasket from the oil pan and engine
block.
To install: 13. Run a
1/8 in. (3mm) bead of RTV around the oil pan sealing surface or
install a new gasket. Remember to keep the RTV on the INSIDE of the
bolt holes.
14. Install the pan and pan bolts. Torque the pan bolts to:
• 2.8L & 3.1L V6 (M6 x 1 X 16.0 bolts): 6-9 ft. lbs. (8-12 Nm)
• 2.8L & 3.1L V6 (M8 x 1.25 x 14.0 bolts ): 15-22 ft. lbs. (20-30 Nm)
• 1982-84 V8 engine (5/16-18 bolts): 165 inch lbs. (10 Nm)
• 1982-84 V8 engine (1/4-20 bolts): 80 inch lbs. (8 Nm)
• 1985 V8 engine (5/16-18 x 1.44 studs): minimum of 10 inch lbs.
• 1985 V8 engine (stud nuts): 150- 180 inch lbs. (17-20 Nm)
• 1985 V8 engine (1/4-20 x 0.56 bolts): 72-90 inch lbs. (8-10 Nm)
• 1985 V8 engine (1/4-20 x 0.50 x 0.56 studs): 72-90 inch lbs. (8-10
Nm)
• 1986-92 V8 engine (stud nuts): 150-250 inch lbs. (17-28 Nm)
• 1986-92 V8 engine (1/4-20 x 0.56 bolts): 72-130 inch lbs. (8-14
Nm)
• 1986-92 V8 engine (1/4-20 x 0.50 x 0.56 studs ): 72-130 inch lbs.
(8-14 Nm)
15. Lower the engine and install t he front engine mount through-bolts.
Torque bolts to 48 ft. lbs. (65 Nm).
16. Install the starter and starter brace, then secure using starter bolts.
17. Connect the exhaust pipe at the manifo ld. Install the catalytic converter
hanger bolts.
18. Install the air injection pipe at the catalytic converter.
19. Lower the vehicle.
20. Install the fan shroud assembly . Install the distributor cap.
21. Connect the negative battery cable at the battery and air cleaner.